- McDonnell Miller
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Mcdonnell miller other heating parts Collection
McDonnell Miller, a trusted name in boiler controls and flow switches, offers a comprehensive collection of products designed for efficiency and reliability. Explore our selection and find the perfect fit for your needs.
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![Mcdonnell Miller 317350 Check Valve Upper Test Vacuum Breaker with Gasket Model TC-U | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995203_d42a2a97-a685-4d2c-a60d-7d3d4c918119_medium.jpg?v=1719942323)
317350 | Check Valve Upper Test Vacuum Breaker with Gasket Model TC-U | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 317350
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![Mcdonnell Miller 313600 Float Assembly for 847/851 Model 37A-130 | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995217_medium.jpg?v=1717080015)
313600 | Float Assembly for 847/851 Model 37A-130 | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 313600
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![Mcdonnell Miller 310490 Control Unit 150E-CU with Auto Reset for Series 150E/157E | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/663402_medium.jpg?v=1719942301)
310490 | Control Unit 150E-CU with Auto Reset for Series 150E/157E | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310490
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![Mcdonnell Miller 310488 Switch Assembly Snap Action for 42S Model SWA42S | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995131_dc9df841-bae8-408b-8df9-02826e8f7312_medium.jpg?v=1719942299)
310488 | Switch Assembly Snap Action for 42S Model SWA42S | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310488
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![Mcdonnell Miller 310473 Orifice Kit Strainer for WF2U and WFE Series | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/969518_9f19afdf-65f8-4eda-a3a4-71807339afdb_medium.jpg?v=1717080050)
310473 | Orifice Kit Strainer for WF2U and WFE Series | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310473
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![Mcdonnell Miller 310472 Valve Assembly Reverse Acting Model SWA-PFC-R | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995243_medium.jpg?v=1717080039)
310472 | Valve Assembly Reverse Acting Model SWA-PFC-R | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310472
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![Mcdonnell Miller 310442 Bracket Assembly for Series BA-551-05 Bellows | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995254_medium.jpg?v=1717080002)
310442 | Bracket Assembly for Series BA-551-05 Bellows | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310442
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![Mcdonnell Miller 310439 Bracket Assembly for Series 51/52-2 Bellows Water Feeder BA-51-05 | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/969463_medium.jpg?v=1719942312)
310439 | Bracket Assembly for Series 51/52-2 Bellows Water Feeder BA-51-05 | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310439
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![Mcdonnell Miller 310438 Float Assembly with Gasket Model FTL-53-05 | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/1000755_medium.jpg?v=1717079993)
310438 | Float Assembly with Gasket Model FTL-53-05 | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 310438
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![Mcdonnell Miller 309000 Resistor Slide Kit Model 7B-1R for 7B Switch | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/mcdonnell-and-miller_370dacea-ef52-4ddc-8af4-7d5455d2cf80_medium.gif?v=1717079936)
309000 | Resistor Slide Kit Model 7B-1R for 7B Switch | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 309000
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![Mcdonnell Miller 306800 Paddle Kit Model FS7-4W 6 and 1 Inch Stainless Steel | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995140_medium.jpg?v=1719942287)
306800 | Paddle Kit Model FS7-4W 6 and 1 Inch Stainless Steel | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 306800
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![Mcdonnell Miller 306700 Paddle Kit Model FS7-28 6 and 1 Inch Bronze | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995079_c28606d1-3750-4727-b669-4777c36dc39e_medium.jpg?v=1714498842)
306700 | Paddle Kit Model FS7-28 6 and 1 Inch Bronze | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 306700
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![Mcdonnell Miller 182625 Relief Valve Model 260-1 1-1/2 Inch NPT 30 Pounds per Square Inch | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995211_99a236e3-5b1e-4973-a3df-e337869f905c_medium.jpg?v=1719941953)
182625 | Relief Valve Model 260-1 1-1/2 Inch NPT 30 Pounds per Square Inch | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 182625
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![Mcdonnell Miller 182030 Relief Valve Model 250-1 1.437M BTU 1 Inch NPT 40 Pounds per Square Inch | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995173_5378f43f-ab85-4091-b6ce-1cec2f5c31ef_medium.jpg?v=1719941924)
182030 | Relief Valve Model 250-1 1.437M BTU 1 Inch NPT 40 Pounds per Square Inch | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 182030
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![Mcdonnell Miller 180800 Control PFC-1-G Direct Acting Liquid Level 3-15 Pounds per Square Inch Output 1 Inch NPT 250 PSIG | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995256_5dfe2ade-e2c4-42ab-8ff3-2ab800645c58_medium.jpg?v=1719941984)
180800 | Control PFC-1-G Direct Acting Liquid Level 3-15 Pounds per Square Inch Output 1 Inch NPT 250 PSIG | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 180800
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![Mcdonnell Miller 179527 Holder Probe for 4 Level Remote Sensor Model RS-4-BR-1 2-1/2 Inch NPT | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/995233_b0f22e5c-fca3-4d24-93d7-cf519d84e66a_medium.jpg?v=1719941998)
179527 | Holder Probe for 4 Level Remote Sensor Model RS-4-BR-1 2-1/2 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 179527
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![Mcdonnell Miller 179157 Probe Rod Assembly G-3-SS 36 Inch 316 SS | Midwest Supply Us](http://midwestsupplyus.com/cdn/shop/files/mcdonnell-and-miller_de708446-43da-4a27-89e0-29ddf7d77174_medium.gif?v=1714498047)
179157 | Probe Rod Assembly G-3-SS 36 Inch 316 SS | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 179157
Application
Material
Product Type
- 150S-HD with Manual Reset and Maximum Differential
- 158-S-HD with Manual Reset
- 51-2HD for Mechanical Water Feeder with Number 2 Switch Low Water Cut Off
- 851-S Make-Up with Extended Float and Rod Assembly
- Air
- Assembly For RS Series
- Assembly G-3-SS
- Auto Reset
- Cast Iron Sensor Chamber with Probes
- Combo Low Water Cut Off with Auto Reset SPST
- Cover 4 Hole for RS-1 BR-1 Remote Sensor
- Cover for VFS VFC Gasket-PFC Series
- Direct Acting Liquid Level 3-15PSI Output
- Electric
- FLT-51-05 for 51 Water Feeder
- FS4-3D with 2 SPDT Switches
- FS4-3S with SPDT Body Stainless Steel
- FS4-3T1-3 High Flow SPDT
- FS4-3T3-1 Low Flow SPDT
- FS4-3T3-4 Low Flow SPDT
- FS6-W-1 with NEMA 4X Enclosure SPDT
- FS7-4D with 2 SPDT
- FS7-4SE Stainless SPDT with NEMA 7-9 Enclosure
- Float Arm 21-109 Model
- Float for Pneumatic Actuated Series PFC
- For 64 Series
- For 69+ Series Model SA69-104
- For 847/851 Model 37A-130
- For Series 51/52-2 Bellows Water Feeder BA-51-05
- For Series BA-551-05 Bellows
- For TC-4 Test-N-Check Valve
- For Water Feeder 53-HD
- General Purpose SPDT
- General Purpose SPDT with NEMA-4 Enclosure
- High Pressure Model PA-750-HP
- High Sensitivity SPDT
- Junction F/Series 150-150S Low Water Cut Off Pump Controller
- Kit Model FS7-28
- Kit Model FS7-4W
- Large Model SA47-4
- Less Switch Steam 93-HDLS
- Liquid SPDT
- Long Barrel
- Long EA-157L for Series 157S-RBP
- Low Water Cut Off Float with Maximum Differential SPST/SPDT
- Low Water Cut Off Less Quick Hook Up Fittings
- Low Water Cut Off Proportional 7B with Manual Reset
- Lower Test Model TC-L
- Make-Up for Model 847
- Manual Reset with Barrel Probe
- Model 250-1 1.437M BTU
- Model 260-1
- Model BA-53-05
- Model P-1/3-SS
- Output For Series PFC G-PFC-O
- Probe for 4 Level Remote Sensor Model RS-4-BR-1
- Quick Hook Up
- RS-1-LP Low Pressure Sensor
- Replacement for 42S
- Replacement for 67-G
- Replacement for 93/193 Series Combination Low Water Cut Off Pump Controller
- Replacement for Mechanical Water Feeder
- Replacement for Model 51-S-2-HD Low Water Cut Off
- Replacement for Model 63BM/63M Float Type Low Water Cut Off
- Replacement for Model 93/193 Low Water Cut Off
- Reverse Acting Liquid Level 3-15PSI Output
- Reverse Acting Model SWA-PFC-R
- SA150-11 for Series 150/157 with Gasket
- Short EA-157S for Series 157S-RBP
- Short PA-Rb-122
- Slide Kit Model 7B-1R for 7B Switch
- Snap Action for 150S/157S Model SWA150S-M
- Snap Action for 42S Model SWA42S
- Snap Action for Model SWA150S-MD
- Spring Loaded
- Strainer for WF2U and WFE Series
- Supply for Pneumatic Actuated G-PFC-S
- Universal for Hot Water Boilers with Vent Damper
- Upper Test Vacuum Breaker with Gasket Model TC-U
- Water Feeder FDR 51S-HD
- Water Feeder Make-Up for 551S-HD
- With Auto Reset
- With Control Board Harness Model RB-24E-S
- With Extension Barrel Model PSE-802-24
- With Float Block 63B
- With Gasket Model FTL-53-05
- With Gasket Model SA64-30
- With Gasket SA-63-30
- With Pump Controller 150S-B with Manual Reset
- With Pump Controller 157S SPDT with Water Column
- With Pump Controller 157S with Manual Reset SPDT
- With Pump Controller 157S-R SPDT with Alternate Tapings
- With Pump Controller 157S-RBP-MD SPDT with 2 Integral Conductance Probes
- With Pump Controller 157S-RL Float Type Combo SPST/SPDT Auto Reset
- With Pump Controller 193 with 7B Switch Steam
- With Pump Controller 193-A with 7B Switch Steam
- With Pump Controller 193-B with 7B Switch Steam
- With Pump Controller 194-7B with Manual Reset
- With Pump Controller 194-A with 7B Switch
- With Pump Controller 94 with 5 Switch SPDT
- With Pump Controller 94 with 7B Switch SPDT
- With Pump Controller Model 93-7B SPDT
- With Pump Controller Model 93-M SPDT Steam
- With Vent Damper Harness Model RB-24E-A
- Y for 42A/47/64A/67
Service
Size
Used on
Voltage
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